3 functions in one tool! 360° Rotating mechanism lets you choose the tracing point for your project. Choose the Black 0.9mm lead for marking light fabrics, the White 0.9mm lead for marking dark fabrics or the 1.6mm Tracing Roller rolling ball point that glides smoothly so normal writing pressure will imprint clear lines through chaco paper onto fabrics or without chaco paper. The lines are easily erased with the replaceable eraser. Erase lines before ironing. Washing in warm water will also remove lines from most fabrics. Sewline Fabric Pencil Trio, includes black, white or tracer point.